Adewumi, J.A., 1985. A correlation study of performance in the Mock school certificate and west african school certificate (WASC) examination in kwara state secondary schools 1980-1982. Ph.D. Thesis, University of Ilorin, Ilorin, Nigeira.

Adeyanju, T., 1980. The effect of teachers attitude on testing of English as a secondary language. West Afr. J. Educ., 20: 399-406.

Schneider, B.L., 1979. Production analysis of gains in achievement. Ph.D. Thesis, North Western University.

Thomas, J.A., 1962. Efficiency in education: A study of the relationship between related imputs and mean test scores in a sample of senior high schools. Ph.D. Thesis, Stranford University School of Education.

Ukeje, O., 1976. Nigerian needs and Nigerian education: A study of the needs of an emergent nation and the role of education in meeting them. Ph.D. Thesis, University of Ibadan.

Zaku, A.B.D., 1983. The relationship between some school factors and students performance in Chemistry examination in the Gongola state of Nigeria. Ph.D. Thesis, University of Hull.